Type-writing machine.



J. C. MCLAUGHLIN a W. REBER.

TYPE WRITING MHINE.

ArPLIcnmN ULEB 1320.20.190?.

Unrrnn sra-riss PATENT OFFICE-.

JOHN C. IIECLAUGHLIN, OF JERSEY CITY, Nwl JERSEY. AND XVENCES BEBER. OF NE'W YORK, N. Y., ASSIGIORS TO UNDEl-UVOOD TYPBXVRITER COMPANY, OF NEW YORK, N. Y., A COROIRATION- 01: NFJ JERSEY. l i

TYPE-XVBTI .IG MACHINE.

essaies.

Specification of 'Letters Patent.

Patented Feb. S, 1910.

To all 'whom it may concern.:

Be it known that. we, JOHN C. McLAUGi-r- Luna citizen of the United States, residing in JerseyCity, in the counttof Hudson and State of New Jersey, and lVnxcss Brenn, a citizen of the vUnited States, residing in the city of New York, county of New York, and Stale of New York, have invented certain new and useful Improvements in Typesl-'riting Machines, of which the following is a spcciieation.

This invention relates to the keys of typewriting and other instruments, and particularly to the denomination keys of tabulating mechanisms.

` It is frequently desired to use the saine ke)vt ocdil'eient purposes, as in case of a Y tabulating mechanism, where it is sometimes necessariv to use the saine stop for different denominations and to make a corresponding change in the key.

The object of the invention is to provide simple and practicable means for electling `changes in the keys for such purposes.

In the preferred manner of carrying outthe invention, we employ two characterbearing disks., each of which may be in the orni of a helix, the disk being slitted radially to forni the edges of the helix. These helices are nested together in such a manner that one may be rotated to cover or uncover the other, the action of the movable helix being analogous to that of an ordinary screw. The movable helix we connect to the key cap, and-we arrange to rotate the latter in order lo give the desired movement to the movable helix.

Other features and advantages will hereinafter appear.

in the accompanying drawings, Figure 1 is a diagrammatic plan showing in the upper row a set ot denomination keys. of which the tirst four are of ordinary construction, and the lastsix are constructed in accordant-.e with the invention. Upon these six keys the movable helices are shown, the fixed helices being covered up thereby. In said igure, the second row shows the same six keys, the movable helices having bien turned or wormed to positions beneath the iixed disks, exposing the latter, so that. the keys may now be used for different. denominations. ll'hen adjusted according tothe first row, the teu kcvs and their stops are adapt ed tor denmninational work up to millions, with punctuation niarks between the hun- 'di-eds and thousands, .and also between the hundreds of thousands' and millions. In the lower row, the punctuation marks nre omit led and the capacity of the mechanism is increased to vhundreds of millions. Fig. 2 4shows ln plan and elevation the hase and i stein of the key. Fig. 3 shows a perspective ot the knurled key cap and a ring designed to be driven into the cap. Fig. l shows the kejiv base and the character dis is thereon. lfigs. and 3 show diagrannnatiealh1 in perspective the character dii-ks separaten,r and also nested together, and also illustrate the diilerent stages in the 'movement of the movable disk to a position beneath the lined disk. Fig. is a sectional view of tin entire, key. Fig. S is a perspective view .of the movable disk. Fig. J is a cross section eiken horizontally through the base of the key. 1V ig.

to the denomination stop.

The ke lis illustrated as mounted upon a stein l, the latter carried upon a lever 2, which is connected to a rod 3 having at its upper end a denomination' stop 4 to cooperatewith a column stop 5 carried upon a rack or bar 6 mounted upon the usual carriage (not shown). A

The key comprises a base 't' having a central vertical stud S upon which is caughta thin Celluloid or other character. bearing disk 9. A pin 10 connects the disk to the base 7, so that the former may not rotate; Gverlying the disk 9 is a substantially similar disk 11 pivoted upon the stud 8. Each disk may be formed of eellnloid or of thin nir-tal. and radially slit at 12. and given a helical form, so that the radial edge of disk 1l may enter between the radial edges of disk 9. and rotation of the former may .enable it to worm or screw itself to a position entirel)7 below the latter, as illustrated in the lastt-hree positions of Fig. 5 and those of Fig. 6. The movable disk 1l l1s illustrated as bearing-the characters 10 T, l meaning .ten thousand, and the lower disk lO is a diagram showing the key connectedV hearing the characters l 'l" ineaningone thausand. Thus the keyv is changed from a higher or louer denomination or rice versa. according to the exposed character disk. The lnorenient of the inorahle disk ll is effected by a cap 13 which is reroluldy mounted and connected'to saiddisk. ring ll Within the Cap is fixed thereto in any suitable way as by drivingI the ring*r in. lt rests upon the round hase T. transparent cover 1n the forro ot1 a glass disk l5 rests upon the ring. Fig. T, and is retained hy au interior flange t6 formed upon the cap 13. The latter has ears or clips 1T catching nuclei' the bottoni of the base. The cap is knul-led, Fig'. 3 and l0, tor convenience iu rotating the saine. It will be .seen at Fig. that. the'character-hearingf disks are eonlined within the ring It and he'lon'. the transparent eorerl through which the charac,- ters may be seen, as at Fig. l. tongue 1S pro1eeting from the disk ll extends through holes '19, 2t) in the ring and cap to enable the latter to turn the disk. The disk makes Substantial@4 an entire reyolution,V and formed with a notch '2l to clear the piu l0. said pin setting as a stop to limit the niores ment ot' theflisk and cap in one direction. The stationary disk 9 is provided with a stop 22 to limit the movement of thedisk and cap in the reverse direction. .said stop being; in the form of an ear bent ug) from the body ol' the disk. The cap is retained in either position by means; ot' a friction spring .23 haring ends :ist turned into holes formed in the. baise. the latter haring a peripheral groote 2li to receive the spring.

and the spring' rubbing against the innerl Wall et the cap. Figs. i' and. I

ll'hen it is desired to change the keys from one set of denominations lo the other at Figil, it is only necessary to gire each ot' the key caps a full revolution. therclry causing one character disk to be exposed and the other corered up thereby. .V

lt' the disks are made of metal, they may he suitably printed or covered with printed paper disks. It not essential in all cases' that the disk be helical in form. as flat cellu- ,loid andv other disks may oe sutli'eiently yielding to enable the desired worming aetion to take place. Y It. will be seen that one'. of the leading features of the invention consists in employing a character-hearing shutter to cover or uncover a character-healingdisk; and many yariations may be resorted t'within the scope of this and other features of the, iu- Yention. Portions of -sthe improvements may be used Without others.

Haring thus described our invention. we claim: i

. l. key provided with a character diskv and a movable shutter. ano also having aA cap connected to said shutter to adjust the saine.

A key provided with aeharaeter disk and a inoral'dc shutter. and also having a cap comicctcd to said shnterto adjust the same. said .shutter hearing; a character dill'erent from .said disk.

EZ. kej.7 comprising a character disk. a shutter. a *transparent disk over said'rslultter. a cap. and ineans for enabling said cap to operate .said shutter.

l. A key co1nprisinf,I a character disk. a reroluhle shutter l'ieariugr a different Char- .actcr from said disk. a transparent disk over said shutter. a reroluhle cap. and means' connet-ting` said .shutter to :said cap.

"Q kgy hnttnn nqqpnyiivwr n {franc-norman* disk having a striking' surace. a reroluhle cap, and Int-ans connected to said cap for exs hihiting beneath .said disk di'erent charac.- ters at *.fill.

duplex character-'disk in a finger-key button consisting of tiro .helical disks' nested together and relatively adjustable. said key haring a striking surface. l

T. linger-key compri ing a hase. a radially slit.eharacter-disk connected to the base, a second radially f-lit character-disk nested with the first disk. and a tinger-picce connected to the second disk to rotate the saine to corer and uncover the tirst disk.

R. A key comprisin{ y a hase. a radially slit, clnn'acter-disk 4connected to the hase. a

Asecond radially slit character-disk with the lrstldisk. and a finger-piece connected to the second disk to rotate the sante to cover-and uncover the first disk; means being; prorided to lixnit the revolution of the linger-piece in hoth directions.

.l. key comprising' a base. a helical charaeter-hearing' disk connected thereto. a second helical charzu-ter-h'earing diisk nested with the first.' a transparent corel. and a reyoluble linger-piece counccfcd to the .second disk.

-10.` kcy comprising a base. a helical eharactersbearing disk connected thereto; a second helical charactcrhearing disk nested with the first, a transparent cover. a rei-olahle tiiig r-piece connected to the second disk. and means for detaining the rcrolnhlc tinger-pieee in ditl'erent positions.

11. A key comprising a hase. a helical character-Imiring Adisk secured thereon. a

second helical character-laaringdisk nested -withm the first. a transparent corcr. and a revoluble cap connected to the :second disk and haring means to support the cover.

` 12.'.\key comprising a hase. a helical .character-hearing disk secured thercongm Second helical charactersheznine* disk nested within the first. a transparent corer. and a re"o"luble cap connected to the .second disk and having means to support the cover; said nested a friction spring in said groove, two helicalV cap having a flange to cat-ch over the cover. and also havingmeans to catch under the base.

13. lnrcomhnation, a. chameter-hearing disk, a transparent. ,cover therefor, and a key. cap .inclosing said disk and cover and connected to said disk to revolve the saine.

14. A character key provided with a revolnble cap, and means connected to the cap to change the character on the key.

15. A linger-key having two disks bearing different characters, each disk having a radial slitI to permit one disk to be turned to cover or uncover t-he other.y

16. A tabulator nger-'key having, two disks hear-infr different characters, each disk having a radial slit to permit one disk to be turned to cover or uncover the other, each of said disks having the characters both. ahove and below its slit.

17. A set of denomination finger-keys for a tabulator including cert-ain keys, each of which is providedL with two contiguous' character-disks bearing dilierent characters and related so that rnc may be rotated to cover or uncover the other.

18. A setV of denomination keys for a tabulat'or including certain keys, each of which is provided with two contiguous character-disks bearing dilfer'ent characters and related so that one'may be rotated to cover or uncover the other; each rotatable disk being connected to a key cap, whereby it may be rotated. Y

19. A key comprising a round base pro-V vided With a peripheral groove,-a ring resting upon said base, a glass cover resting upon said ring, a revoluhle annular cap having aninterior flange fitting over said cover, said cap inclosing said ring and fixed thereto. and having means to catch under the base, a riction spring -in said groove, two helical character disks nested together.l means connecting one character disk to the base, and means connecting the other character disk to the revoluole cap.-

20. A key comprising a round base provided with a peripheral groove, a ring resting upon said base, a. glass cover resting upon said ring, a revoluble annular cap vhaving an interior iange fitting over said 'cove-r, said cap inclosing said ring and lixedtnereto, and having means to catch under the base,

character disks nested together, means connecting one character disk to the hase, and means connecting the other character d isk to the revoluble cap; thesecond disk being mounted tor approximately an entire revolution, and having a notch to clear 'the fastening pin of the rst disk, and adapted tobe ar-4 rested thereby.

21. A key comprising a round base provided with a peripheralgroove, a ring resting upon said l1asc,a en said ring, a revolub'leannulaz L: interior liangev fitting over said t: fici', vsaid cap inclosing said ring and iis-ed thc-reto. and having means to catch under the Last.

a friction spring in said groove. tivo hei-ica'.

character disks nested together, means conmeeting one character' disk to the base, and means connecting the other character disk 1.o the revoluble cap; the second disk being mounted for approximately an entire revolution, and having a notch to clear the fas-- teuing pin of the first disk, and adapted to be arrested thereh g and the first disk hav-- ing a stop to arrest the revolution ofthe sec ond disk in the opposite direction.

22. A key comprising a stem, a round `nase thereon provided with a peripheral groove and a central stud, a ring resting' upon said base, a gass cover resting upon said ring, arotatable annular. cap 'having an interior flange fitting upon said cover, said cap tired to and inclosing said ring and having ears to catch under .the base, a friction spring in said groove and having,r endey turned into perforations in the base, two helical character-disks having radial edges and :nested together and tted upon said stud, a pin connecting one 'character disk to the base, and a projection connecting the second character disk to the revoluble cap', the' second disk heinfr mounted for ap roximately an entire revo ution and notche to clear the fastening pin of the rst disk and also adapted to be arrestedl by said pin, and the .lirst disk having a stop to arrest the revolution of the second disk in the opposite direction; the ra-A dial edges of each helix being adjacentV to each other, and characters being formed one above and one below said edges.

23. In a tabulatin mechanism, a set of denomination inger- 'eys including a series of keys, each provided with tivo 'character disks of different denominations, and having means to brin either disk into 'view at will, and a denomination-determining mech- :mism adjustable by said keys.

Q4. In a tahulating mechanism, a set of denomination keys including a series o keys, each provided 'with a. revoluble cap, and means controlled hy the caps for changing the 'denominations of the keys.

25.' The combination with a set of nnchangeable' denomination sto s, of a set of denomination keys connecte to said stops to operate the same, certain of said keys bear-A inv changeable indices or characters to enabile each of their connected stops to serve -or different denominations, or for alternate punctuation and denominationand thereby to enable theentire setof keys and stops to serve for alternate systems of tabulation.

9.6. A system of keys for a denominationselecting. mechanism including a series of keys including punctuation marks m' spaces to separate the hundreds from the thomands i Hmossesz .n n I Y I nmhnngmgf kvys for dcnomnmtmns up to marks bolug omlfted from the who; set of and Including hundreds, and a somos of farces or indexes, the latter having a corrc- 1o v spmdngly j flvater range of denominations. one ss t of feces or Indexes of the cnnngonblo 2 JOHN C. MCL- PGI-NJN NENS BEBE?.

gmup and to separate the lnter from hc JmL-u O SEIFER'L', mlhons grjoup, and sepnrntmg spaces or; 

